/*
 *    Copyright © OpenAtom Foundation.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package com.inspur.edp.bef.dtgenerator.core.rtgen.managergen.method;

import com.inspur.edp.bef.dtgenerator.BEGeneratorContext;
import com.inspur.edp.caf.generator.baseInfo.ParameterInfo;
import com.inspur.edp.caf.generator.baseInfo.TypeInfo;
import com.inspur.edp.caf.generator.method.ClassMethodGenerator;
import com.inspur.edp.cef.generator.coreGenerator.base.mgrGenerator.ManagerGeneratorContext;
import com.inspur.edp.cef.variable.api.manager.IVariableManager;
import com.inspur.edp.cef.variable.dtgenerator.VariableGeneratorContext;
import java.util.ArrayList;
import org.eclipse.jdt.core.dom.Block;
import org.eclipse.jdt.core.dom.ClassInstanceCreation;
import org.eclipse.jdt.core.dom.Modifier;
import org.eclipse.jdt.core.dom.ReturnStatement;

//protected override IVariableManager CreateVariableManager();
public class GetCreateVarMgrGenerator extends ClassMethodGenerator {

  private ManagerGeneratorContext parentContext;

  public GetCreateVarMgrGenerator(ManagerGeneratorContext parentContext) {
    this.parentContext = parentContext;
  }

  @Override
  protected Block buildMethodBody() {
    Block block = ast.newBlock();
    ReturnStatement returnStatement = ast.newReturnStatement();
    VariableGeneratorContext varGenerateContext = ((BEGeneratorContext) parentContext
        .getProjContext().getCefGenContext()).getVarGenerateContext();
    if (varGenerateContext == null) {
      returnStatement.setExpression(ast.newNullLiteral());
    } else {
      String mgrType = varGenerateContext.getCefCoreGenCtx().getVariableMgrType().getFullName();

			if (mgrType == null || "".equals(mgrType)) {
				returnStatement.setExpression(ast.newNullLiteral());
			} else {
				ClassInstanceCreation classInstanceCreation = ast.newClassInstanceCreation();
				classInstanceCreation.setType(ast.newSimpleType(ast.newName(mgrType)));
				returnStatement.setExpression(classInstanceCreation);
			}
    }
    block.statements().add(returnStatement);
    return block;
  }

  @Override
  protected TypeInfo getReturnType() {
    return new TypeInfo(IVariableManager.class);
  }

  @Override
  protected java.util.ArrayList<Modifier.ModifierKeyword> getAccessModifiers() {
    return new java.util.ArrayList<Modifier.ModifierKeyword>(java.util.Arrays
        .asList(new Modifier.ModifierKeyword[]{Modifier.ModifierKeyword.PROTECTED_KEYWORD}));
  }

  @Override
  protected boolean getIsOverride() {
    return true;
  }

  @Override
  protected ArrayList<ParameterInfo> getParameterCollection() {
    return null;
  }

  @Override
  protected String getMethodName() {
    return "createVariableManager";
  }
}
